The study of logic is not merely about correct reasoning, but about the liberation of thought.
邏輯學(xué)研究不僅僅是關(guān)于正確推理，而是關(guān)于思想的解放。
我所獲得的豐富來自大自然，那是我靈感的源泉。
The historian must have a kind of faith that humanity will not and cannot perish.